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Dyeing, finishing and processing method of short flax fiber

A processing method and short fiber technology, which is applied in the field of dyeing and finishing of flax short fiber, to achieve the effects of improving dry and wet rubbing fastness, reducing damage, and reducing short pile rate

Inactive Publication Date: 2016-02-03
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to investigations, using this processing method, the yarn for knitted underwear made from flax staple fiber has not been reported at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] With flax short fiber as raw material, the specific process is as follows:

[0024] (1) Pretreatment - scouring one bath Pretreatment: peracetic acid 3.0g / L, sodium silicate 2.0g / L, temperature 55°C, time 45min, bath ratio 1:30; sodium carbonate 9.0g / L, silicon Sodium acid 2.5g / L, temperature 95°C, time 50min;

[0025] (2) Hot water washing: wash twice at 85-90°C;

[0026] (3) Warm water washing: wash twice at 45-50°C;

[0027] (4) Dehydration: 3 to 5 minutes;

[0028] (5) Dyeing: Reactive dye KE1.0%, rubbing fastness improver NEOFIXIR-770.08g / L, dyeing at 50°C, adding sodium chloride 20.0g / L, heating to 90°C at 1°C / min, adding carbonic acid Sodium 6.0g / L, keep warm for 55min, liquor ratio 1:30;

[0029] (6) Washing in cold water: wash twice at 20-30°C;

[0030] (7) Soap boiling: soap flakes 2.0g / L, sodium carbonate 2.0g / L, temperature 95°C, time 8min, liquor ratio 1:30;

[0031] (8) Washing in cold water: washing at 20-30°C until alkali-free;

[0032] (9) Dehydr...

Embodiment 2

[0035] With flax short fiber as raw material, the specific process is as follows:

[0036] (1) Pretreatment - scouring one bath Pretreatment: peracetic acid 3.0g / L, sodium silicate 2.5g / L, temperature 55°C, time 50min, bath ratio 1:30; sodium carbonate 9.0g / L, silicon Sodium acid 2.5g / L, temperature 90°C, time 50min;

[0037] (2) Hot water washing: wash twice at 85-90°C;

[0038] (3) Warm water washing: wash twice at 45-50°C;

[0039] (4) Dehydration: 3 to 5 minutes;

[0040] (5) Dyeing: Reactive dye KE1.5%, rubbing fastness improver NEOFIXIR-770.09g / L, dyeing at 50°C, add sodium chloride 25.0g / Ll, heat up to 95°C at 1°C / min, add carbonic acid Sodium 7.0g / L, keep warm for 55min, liquor ratio 1:30;

[0041] (6) Washing in cold water: wash twice at 20-30°C;

[0042] (7) Soap boiling: soap flakes 2.0g / L, sodium carbonate 2.0g / L, temperature 95°C, time 8min, liquor ratio 1:30;

[0043] (8) Washing in cold water: washing at 20-30°C until alkali-free;

[0044] (9) Dehydration...

Embodiment 3

[0047]With flax short fiber as raw material, the specific process is as follows:

[0048] (1) Pretreatment - scouring one bath Pretreatment: peracetic acid 3.5g / L, sodium silicate 2.5g / L, temperature 55°C, time 50min, bath ratio 1:30; sodium carbonate 9.5g / L, silicon Sodium acid 2.5g / L, temperature 90°C, time 55min;

[0049] (2) Hot water washing: wash twice at 85-90°C;

[0050] (3) Warm water washing: wash twice at 45-50°C;

[0051] (4) Dehydration: 3 to 5 minutes;

[0052] (5) Dyeing: reactive dye KE1.5%, rubbing fastness improver NEOFIXIR-770.09g / L, dyeing at 50°C, adding sodium chloride 22.0g / L, heating to 90°C at 1°C / min, adding carbonic acid Sodium 6.5g / L, keep warm for 55min, liquor ratio 1:30;

[0053] (6) Washing in cold water: wash twice at 20-30°C;

[0054] (7) Soap boiling: soap flakes 2.0g / L, sodium carbonate 2.0g / L, temperature 95°C, time 8min, liquor ratio 1:30;

[0055] (8) Washing in cold water: washing at 20-30°C until alkali-free;

[0056] (9) Dehydra...

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Abstract

The invention discloses a dyeing, finishing and processing method of a short flax fiber. With the short flax fiber adopted as the raw material, the method comprises the following steps: pretreatment-boiling off-treatment before bath; hot water rinsing; warm water rinsing; dehydration; dyeing; cold water rinsing; soap boiling; cold water rinsing; dehydration; and drying. The method has the advantages that the pretreatment procedure and the boiling off procedure are combined into bath treatment, so that the technological process is shortened; besides, environment-friendly peracetic acid is adopted to replace traditional sulfuric acid for the pretreatment, so that the damage of fiber strength is reduced; the impurities such as lignin, pectin and pigment can be effectively removed, the softness and extensibility are improved, the short fiber content is decreased, the separation index and spinnability of the short fiber are remarkably improved, and the quality and function are improved; after a fastness to rubbing improving agent is added, the dry and wet crockfastness is improved by 1-2 levels, the comprehensive performance is improved, and the produced combed short flax high count yarn is equally matched with long flax with the same line density no matter in physical index or in yarn appearance quality.

Description

technical field [0001] The invention relates to a dyeing and finishing method of flax staple fiber, which belongs to the technical field of textiles. Background technique [0002] Flax fiber has hygroscopicity, good air permeability, antiseptic and antibacterial health care functions, and it will be more comfortable as knitted underwear. Flax short fiber is short flax, the price is longer than flax, but it has the disadvantages of fiber disorder, mutual entanglement, inconsistent physical and mechanical indicators such as extensibility and strength, and poor spinnability, so processing is limited, affecting use and development. Therefore, it is of great significance to expand new products of flax staple fiber, save resources and increase added value. [0003] In the traditional flax short fiber pretreatment process, the pretreatment process and the scouring process are usually carried out separately, that is, the two-bath method. The two-bath method not only has a long pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/196D06M11/79D06M11/76D06P1/38D06P1/673D06P3/60D06M101/06
Inventor 高洁赵欣王高扬赵波徐瑶王佳慧张微
Owner QIQIHAR UNIVERSITY
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